Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual escola escolheu um running back na rodada 16, após a escolha 89?
 ###Tabelas: CREATE TABLE composition_of_the_7th_seanad (composition_of_the_7th_seanad_id AUTO_INCREMENT PRIMARY KEY, Administrative Panel INT, Agricultural Panel INT, Cultural and Educational Panel INT, Industrial and Commercial Panel INT, Labour Panel INT, National University of Ireland INT, University of Dublin INT, Nominated by the Taoiseach INT, Total INT) CREATE TABLE first_world_war (first_world_war_id AUTO_INCREMENT PRIMARY KEY, Rank in Military VARCHAR, Name VARCHAR, Born INT, Killed INT, Political Party VARCHAR, MP's Seat VARCHAR) CREATE TABLE u.s._census_statistics (u.s._census_statistics_id AUTO_INCREMENT PRIMARY KEY, Rank (CSA) VARCHAR, State(s) VARCHAR, 2007 Estimate VARCHAR, 2000 Population VARCHAR, Percent Change (1990–2000) VARCHAR) CREATE TABLE nfl_draft (nfl_draft_id AUTO_INCREMENT PRIMARY KEY, Round INT, Pick INT, Player VARCHAR, Position VARCHAR, School VARCHAR) CREATE TABLE bulgaria (bulgaria_id AUTO_INCREMENT PRIMARY KEY, Line VARCHAR, Speed VARCHAR, Length VARCHAR, Construction begun VARCHAR, Expected start of revenue services INT)  
SELECT School FROM nfl_draft WHERE Pick > 89 AND Position = back AND Round = 16